Slide 1 Slide 2 Energy Lecture 4 Hesss Law & Review Slide 3 Calculating Enthalpy Change A theoretical way to determine H for a chemical reaction is provided by Hesss…

Slide 1 Slide 2  symbolic representation of a chemical reaction that shows: ◦ reactants on left side of reaction ◦ products on right side of equation ◦ relative…

Energetics Click to start Question 1 Which statement about this reaction is correct? 2Fe(s) + 3CO2(g)  Fe2O3(s) + 3CO(g) ΔHƟ=+26.6kJ Wrong Answer! For 2 moles of Fe,…

Chapter 16 Energy is the ability to do work or produce heat. Heat is commonly measured in joules or calories. 1 calorie = 4.184 joules The amount of heat produced required…

CHAPTER 4 Stoichiometry Calculations Based on Chemical Equations How many CO molecules are required to react with 25 molecules of Fe2O3? Calculations Based on Chemical Equations…

CHAPTER THREE CHEMICAL EQUATIONS & REACTION STOICHIOMETRY Chapter Three Goals Chemical Equations Calculations Based on Chemical Equations Percent Yields from Chemical…

CHEMICAL EQUATIONS & REACTION STOICHIOMETRY CHEMICAL EQUATIONS & REACTION STOICHIOMETRY Chapter 3 1 symbolic representation of a chemical reaction that shows: reactants…